[Wise Marine-KY] Supplementary Announcement of Self-Calculated Earnings for May 2026

1. Date of occurrence: 2026/06/03 2. Company name: Wise Marine Group 3. Relationship with the company: Parent company 4. Mutual shareholding ratio: Not applicable 5. Reason: Supplementary announcement of May 2026 self-calculated earnings 6. Countermeasures: Publication of material information 7. Other matters: Monthly revenue: 57,700,769 USD (1,817,170 thousand TWD) Year-on-year change: 39.79% Cumulative revenue: 246,891,928 USD (7,802,032 thousand TWD) Year-on-year change: 30.23% Monthly operating profit: 21,561,603 USD (679,039 thousand TWD) Year-on-year change: 259.89% Cumulative operating profit: 76,093,049 USD (2,404,616 thousand TWD) Year-on-year change: 293.38% Monthly pre-tax profit/loss: 18,194,889 USD (573,012 thousand TWD) Year-on-year change: 45.08% Cumulative pre-tax profit/loss: 67,448,090 USD (2,131,427 thousand TWD) Year-on-year change: 746.63% Monthly pre-tax EPS: 0.77 Cumulative pre-tax EPS: 2.86

[Analysis of changes] 1. Fleet changes: Qadris Benefit (Handy) joined, Paiwan Fortune (Handy) joined. 2. Operational changes: 4 vessels underwent docking this month. 3. Exchange rate fluctuations: Gains and losses incurred on borrowings due to exchange rate shifts. 4. Contract renewals: 3 vessels renewed this month. 5. Operating profit: Increased by 259.89% year-on-year due to the poor market conditions in the first half of 2025. 6. Non-operating profit/loss: Exchange losses of approx. 1,080,000 USD incurred due to the appreciation of the JPY, TWD, and CHF.